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Progenitor effects and unique transcriptomic signatures linked to differentiation phenotype in clonally expanded antigen-specific CD8 T memory stem cells (TSCM)

GSE280113 Homo sapiens (human) Single-cell RNA-seq 509 samples Submitted 2025/10/20 Platform GPL18573
At a glance

Single-cell RNA-seq · human · 509 samples

What it is
Single-cell RNA-seqGene activity measured in thousands of individual cells, so cell types can be told apart. Read from the summary: GEO's own type field only says 'expression profiling by sequencing', so confirm it in the paper.
Organism
Homo sapiens (human)
Samples
509 samples: 114 conditions, mostly in duplicateGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Progenitor effects and unique transcriptomic signatures linked to differentiation phenotype in clonally expanded antigen-specific CD8 T memory stem cellsJournal of immunology (Baltimore, Md. : 1950) · 2026
Summary (written by the submitters)
Memory stem CD8 T cells (TSCM) are a long-lived T cell subset displaying stem cell-like properties, which play a significant role in anti-viral defense and exhibit a gene expression profile between naïve and central memory T cells. Yet, comprehensive transcriptional profiling of antigen-specific CD8 TSCM cells at the single cell level has not previously been undertaken.
Read the full summary ↓
In this analysis, we utilized an in vitro single cell colony expansion protocol to study human CD8 T cell clones specific for Cytomegalovirus (CMV) epitopes - phenotypically, functionally, and in transcriptomes. We characterized clonal lineages from 3 donors by single cell sorting dextramer positive CD8 T cells of varied effector and memory surface phenotypes, all recognizing one of two HLA restricted CMV epitopes. Phenotypic and functional characterization of clonal lineages derived from antigen-specific TSCM revealed differentiated memory and effector subsets (TCM, TEM, TEFF) as well as TSCM, with the latter subset featuring multi-potentiality and multi-cytokine production. Studying TSCM-derived progeny of these varied differentiation phenotypes in single cell transcriptomic analysis revealed strong progenitor-to-progeny effects, whereby daughter cells from a shared progenitor clustered closely regardless of progeny differentiation phenotype, suggesting a dominant impact associated with heritable genes. The TSCM-derived TSCM-progeny revealed distinct transcriptomic profiles featuring expression of both recognized early differentiation memory T cell genes, such as IL7R, CCR7, SELL and CD27; as well as several novel genes which were shared across subjects and epitopes. The transcriptional features of clonal lineages are strongly dependent on the progenitor cell, but TSCM have an additional transcriptomic signature likely underpinning the unique differentiation and functional characteristics. These findings have important implications for identification of long-lived and multi-potent CD8 T cells for immunotherapy and immunization against viral infections.
Published in
Progenitor effects and unique transcriptomic signatures linked to differentiation phenotype in clonally expanded antigen-specific CD8 T memory stem cells
Zhao Y, Samir J, Keoshkerian E et al. · Journal of immunology (Baltimore, Md. : 1950) 2026 · PMID 41231761 · doi:10.1093/jimmun/vkaf299
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE280113_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: Single-cell studies usually ship their counts as 10x files (matrix.mtx, barcodes.tsv, features.tsv), an .h5 file, or an .rds / .h5ad object that Seurat or Scanpy can open. Look for those among the supplementary files.

Also filed as BioProject PRJNA1176481 and SRA study SRP540875. Searching any of these in the dataset finder brings you back here.

Study design
114 conditions, mostly in duplicate
HAN-EM-G16-EM-G ×7 697-SCM-CL2-EFF-A ×6 959-SCM-B22-CM-F ×5 HAN-CM-D8-CM-A ×5 HAN-EFF-O22-SCM-G ×5 697-SCM-CL1-EFF-F ×4 697-SCM-CL1-EM-CM-H ×4 959-SCM-B22-EM-G ×4 +199 more

Supports a between-group comparison across 307 samples.

How we read this: 114 replicated groups read from the first 400 of 509 sample titles; they account for 307 of them. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study

+ 469 more — browse all 509 samples with per-sample file links →

Datasets on a similar topic

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